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1971 Map of Tercio, 1974 Print
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1971 Map of Tercio

USGS Topo · Published 1974

About this map

The Maxwell Grant, specifically the Beaubien and Miranda portion, dominates this 1970s landscape in southern Colorado. The settlement of Tercio is centered near the coal mining operations that defined the local economy, including the Tercio Mine and the Vega Mine. These industrial sites are linked by an Old Railroad Grade that follows the winding path of the South Fork Purgatoire River, illustrating the historical dependence on rail for moving resources out of the canyon floor.

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Map Details

Date Portrayed1971
Date Published1974
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.59 x 26.85 inches

Editions of this 1971 Tercio Map

Historical Maps of Tercio Through Time

459 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain